Boat bailer



A ril 1961 L.IN. mson BOAT BAILER Filed Nov. e, 1959 INVENTOR. Lesle N. Maftson ATTURNEYB United States Parent@ BOAT BAILER Leslie N. Matt'so, 212 W. Broad St., Paulsboro, NJ. Filed Nov. 6, 1959, Ser; No. 851 409 3 Claims. (CI. 114-183) This invention relates to boats of the built in or inboard motor type, and in particular a spiral vane on a propeller shaft and enclosed in a tubular casng wherein with a tube extended from the high or discnarge end of the tubular casing through an opening in the -boat above the water line water is discharged from a boat continuously as the propeller shaft rotates.

The purpose of this invention is to provide means for discharging water from a boat continuously as the boat is in operation without the use of additional power and without reducing the floor area in the boat.

Various types of pumps, and the like have been provided for removing water from boats. However, the conventional hand pump is still used universally, primarily because it is always ready to operate, and also because it does not occupy valuable space in the boat.

The conventional hand pump always presents a problem because it must be pn'med, and furthermore it is diflicult to hold the lower end in a low point in the boat and the discharge spout over the side' of the boat at the same time. With this thought in mind this invention contemplates a spiral vane or screw positioned on a sleeve mounted on a propeller shaft and enclosed in a tubular casing whereby upon rotation of the propeller shaft water in the lower part of a boat in which the propeller shaft is positioned is driven forwardly and may be discharged through a tube extended through an opening in a wall of the boat.

The object of this invention is, therefore, to provide a pump tor removing water from a boat in which the pump is actuated by a conventional moving part of the boat.

Another object of the invention is to provide a water discharge element for a boat in which said water dis charge element is designed to be installed in' boats now n use.

Another important object of the invention is to provide a water discharge pump for a boat in which the pump. may be installed by the average layman.

A further object of the invention is to provide a water discharge pump for a boat in which the pump is mounted on and operated by the propeller shaft of the boat and in which the pump is of simple and economical construction.

With these and other objects and advantages in view the invention embodies a sleeve secured on a propeller shaft of a boat; a spiral vane providing a screw positioned on the sleeve, a tubular casing extended around the propeller shaft and in which the sleeve and vane are mounted, and a discharge connection extended from the casing through an opening in the boat -in shaft is positioned.

Other-features and advantages of the invention will appear from the following description taken in connection with the drawing, wherein: v

Figure 1 is a longitudinal'section through the stern of a boat showing a screw positioned on the propeller shaft 'of the boat with a tubular casing surrounding the screw and with a water outlet tube extended from'the discharge' end of the 'casing'through a wall oth'ebo'at.

which the propeller Patented Apr, 11, 1961 Figure 2 is a cross section through the pump assembly taken on line 2-2 of Figure 1, showing a spiral vane mounted on a propeller shat't and positioned in a tubular casng.

figure 3 is an explojded view showing two halves of a tubular casing, a spiral vane assembly, and a scaling Washer.

Keterring now to the drawing' wheren like reference characters denote corresponding par'ts the improved boat bailer of this invention includes a spiral vane 10 positioned on a split sleeve including semi-circular sections 11 and 12, a tubular casing including an upper section 13 and a lower section 14, and a sealing Washer 15.

Although the sleeve is illustrated as being formed of the two semi-circular sections 11 and 12, it will be understood that it may be formed of one piece and the vane integral therewith.

The sections 11 and 12 of the sleeve on which the spiral vane or screw is positioned are secured in position on a propeller shaft 16 by bolts 17 and 18 that extend through the sleeve and shaft, and that are provided with heads 19 at one side and nuts 20 at the other. The ends on which the nuts are positioned are threaded.

The vane 10 may be threaded or turned on the sleeve, and with the vane secured to the sleeve by spot welding, as shown at the point 21, the vane retains the sections or" the sleeve in assembled relation on the propeller shaft.

"lhe lower section 14 of the tubular casing is provided with flanges 22 and 23 having spaced openings 24 and i 25 theren, respectively, and the section is supported by short legs 26 at the low end and a long leg 27 at the upper end. The lower ends of the legs are provided with flanges 28 and 29, and the flangeshave bolt holes 30 thei-ein, by which the unit is bolted to the bottom of a boat by bolts 31.

The upper section 13 of the tubular casing is provided with flanges 32 and 33 and the flanges are provided with bolt holes 34 and 35, which are positioned in register-ing relation with the bolt holes 24 and 25 of the lower section 14.

The section 13 is provided with a neck 36 from the upper end of which a tube 37 extends, and the tube is connected by a flexible tube 38 to a discharge tube 39 extended through the sternboard 40 of a boat 41. The tube 39 is provided with scaling washers 42 and 43, and the ends of the fiexible tube 38 are secured over the ends of the tubes 37 and 39 by clamps 44 and 45. f

In use the sections 11 'and 12 of the sleeve are positioned on the propeller shaft 16 and secured in position by the bolts 17 and 18. The vane 10 is then secured on the sleeve. The sections 13 and 14 are then positioned over The shaft 16 is provided with a pin 48 to prevent accidental displacement of the screw, and thelower edge of the section 14 of the tubular casing is provided with a downwardly curved lip 49 to facilitate water and the like being drawn into the pump housing.

With the parts assembled as illustrated and described the pump operates continuously, peller shaft is rotating, and when rotating the action of the pump or as long as the prothe propeller shaft stops ceases. By this means no power is used unless the engine or motor is Operating, v and, even then, the only time power is required is when there is water in .the boat. r e

Ir operation, the-water is discharged upwardly through* ii the neck '36 and outwardly 'through thetubes' 37,' 38,

and 39.

With the 'tube 39 positioned above ,the water-line the' possibiiity of water flowing back in the boat is substan- `sign and arrangementof parts without departing from the spirit and' intention' of the invention.

What is claimed is: i

1. A boat baiier com'prising a sleeve'having a spiral vane on the outer surface thereof providing ascrew thereon, means for mountin'g the sleeve with the vanethe'reon on the' propeller shaft 'of a boat,'a 'tubular casirg ex tended around the vane, and a connection from the discharge end of the vane throgh the wall" of the'hoat above the water line. i 2. In a boat pump,' the combinato'n whichcomprises a pair of semi-circular sections providing 'a sl'e'ev; means for mounting the sleeve on the' propeller shaft of ;a boat, a vane on the outer' surface of said sleeve providing a' screw positioned on the slee've, `a 'housing position'ed around the vane and sleeve, and a' connection extended from the discharge end of the housing through an opening in a wall of the boat above the water line.

3. In a boat bailing pump, the combination which comprises a sleeve having a spital vane on the outer surface thereof designed to be positoned'on a ropeller shaft of a boat, a tubular casing surrounding the vane and sleeve, means for supporting the casingrom the bottom of the boat, a connection extended froin the discharge end of the tubular casing, a tubeextended through the sternboard of the boat and positioned .above the water line, and'a fiexible tube secured 'by clamps o'n" 'er'ds of the connection from. the discharge 'end of thetubular casing and tube extended through the sternboarci of the boat.

References Cited in the file of this patent Apr; 28, "1953 I Sent. 1 5. 1959 i f l i 

